Events

Sample demonstrates simple event listeners attached to the MapView.

Click/Drag/Focus Events

Click:

Double Click:

Hold:

Drag:

Blur:

Focus:

Pointer Events

Pointer Down:

Pointer Up:

Pointer Enter:

Pointer Leave:

Pointer Move:

Key/Mouse Events

Key Down:

Key Up:

Mouse Wheel:

Extent:

GeoBlazor by

dymaptic

About this sample

This GeoBlazor sample, written in Blazor for .NET developers, demonstrates the full set of MapView events from the ArcGIS Maps SDK for JavaScript surfaced as Razor event callbacks on GeoBlazor's MapView component. The page shows a 2D Daily Planet imagery WebMap loaded from an ArcGIS Online portal item. Above the map are three collapsible Accordion sections grouping the live event feeds: Click/Drag/Focus Events (Click, Double Click, Hold, Drag, Blur, Focus), Pointer Events (Pointer Down, Pointer Up, Pointer Enter, Pointer Leave, Pointer Move), and Key/Mouse Events (Key Down, Key Up, Mouse Wheel, Extent). Each field in those sections shows a live JSON dump of the most recent corresponding event payload. Interactions on the map (clicks, drags, key presses, scroll-wheel zooms, etc.) flow through OnClick, OnDoubleClick, OnHold, OnDrag, OnPointerDown, OnPointerUp, OnPointerEnter, OnPointerLeave, OnPointerMove, OnKeyDown, OnKeyUp, OnMouseWheel, OnExtentChanged, OnBlur, and OnFocus callbacks; OnClick additionally calls ToScreen and ToMap to round-trip the click point. Events are throttled with EventRateLimitInMilliseconds. The sample is intended to demonstrate listening to and inspecting every map event in a Blazor application without writing JavaScript.